Adjustable handle



"W. A HELD. ADJUSTABLE HANDLE.

PPPP lC ATlON FILED MAR 11 1922.

1 Aiw -gwv Patenteiigept 2&9 19220 y/j mum... V is i16 Patented Sept. 26, i922.

(QDFFHQEQ WILLIAM A. FIELD, OE GHCAGO, ILLINOIS.

.ADJ'USTABLE HANDLE.

Application filed March 11, 1922. Serial 1%.- 543,129.

To (ZZZ whgm'z't concern:

Be it known that 1, WILLIAM A. FIELD, a

. citizen of the United States, and aresident of Chicago, in the county of Cook. and State of Illinois, have invented certain new and useful. Improvements in Adjustable Handles, of which the following is a specification, reference being had to the accompanying drawingl v My invention relates to handles used in connection with various types of machines, such as routing machines, where it IS de sirable that the length of the handle may be. varied, and has for its object to provide an improved handle the operatinglength of which may beiveryquickly and easily ad'- justed Without the use of tools. I accomplish this object as illustrated in the accompanying drawings and hereinafter described.

What I regard as new 'isset forth in the claims In the accompa1iying.drawings,-,

Fig. 1 is a plan view of my improved handle; I

Fig. 2 is an enlarged detail, being partial longitudinal sectional view on line 22 of Fig. 3;

Fig. 2;.

4 is across-section on line 4 -4 of Fig. 2;

Fig. 5 is a perspective view of-the head through which the handle operates;and

Fig. 6 is a perspective view ofvone of the wedge blocks by which the handle rod or shaft is clamped against endwisemovement with relation to the head. V

rfy improved handle comprises a rod or shaft 7 which, as shown in Figs. 3 and 4, is

non-circular, preferably square, in crosssection, and" is provided at one end with a gripping device 8, preferably in the'formof a cross-bar, by which it may be moved end Wise or rotated. The rod 7 extends freely.

through a passage 9 in the head or block 16,

so that it is capable of bein moved. end- Wise through said head and 0 being rotated independently thereof. The head '10 is provided at one side with an externally screwthreaded sleeve 11, the inner face of which is tapered to forma conical bearing surface concentric with the axis of the passage 9.

Mounted upon the rod 7 is a cap-sleeve 12 which is provided with a central opening to receive the rod 7. This opening is spuared or othei'wise shaped to conform'to the cross-sectional contour of the rod 7, so -that said cap sleeve rotates with said rod, but

the rod is free to move endwise therethrough. The sleeve portion 1% of said cap sleeve s'internally threaded to screw upon the threads of the sleeve 11, and consequently by rotating the rod 7 the cap, sleeve 12 may be screwed upon or unscrewed from said sleeve 11 r Fitted between the cap sleeve 12 and the 1nner con1cal surface of the sleeve 11 are a series of wedge blocks 13, the shape of which is best shown in Figs. 2-and 6, from which it will be seen that they have a plane surface lei adapted to bear on one of the sur faces of the rod 7 and an inclined surface 15 adapted to fitagainst the inclined surface ofthe sleeve 11. The larger end 16 of the wedge block is-adapted to bear against clamping said rod against endwise movement with respect to the head 10, and that m ay he forced into wedging engagement 1 V i with the sleeve ll'and rod 7 thereby tightly Fig. 3 1s a cross-section on line 3-3 of by rotating said cap sleeve in the opposite direction the rod 7 may-be released .to pernnt it to move freely longitudinallysthrough the head 10. By a simple turn of the wrist,

therefore, the operator can release the rod 7 and adjust it so thatthe cross-bar 8 is at the desired distance from the head, 10, and then by twisting the handle in the opposite direction he canclamp it in its adjusted position. The head l0 in the construction shown serves as a -means of connecting the handletothe part to be operated by it, which in this case is shown. as being a rod 17 having a yoke 18 in which the head 10 is supported by trunnions 19 in the form of screws the heads of which are fitted in the yoke while the screws are screwedinto opposite sides of the head in line with the axis thereof. The rod 17 is connected with the part to be operated by the handle, or ifthe handle is used as a lever, may either be connected with the load. or form the fulcrum for the lever.

My improved handle may be used for a great variety of purposes, for example, as'a transom lifter, and I wish, it to be understood. therefore, that the improved construction shown and described is claimed for any use to whichit is adapted. lVhile' I prefer to'use two clamping blocks it will be evident that any desired number of such blocks may be provided.

hat I claim as my invention and desire to secure by Letters Patent, is-

. 1. A handle comprising ahead having a passage theret-hrough and an inclined bearing surface, a rod extended through said head, a wedge'block adapted to bear against said rod and'said inclined bearing surface, and means movable longitudinally on said rod and operated by the rotation thereof for clamping said wedge block between said bearing surface and said rod.

2. An adjustable handle comprising a head having a passage therethrough anda sleeve concentric with said passage, a rod movable longitudinally through said passage, a cap sleeve movable longitudinally of said rod and rotating therewith, said cap sleeve being adapted to screw upon said first-mentioned sleeve, and clamping means between said first-mentioned sleeve and said rod and actuated by the rotation'of said cap sleeve for clamping said rod against longitudinal movement with reference to said head.

3. A handle comprising a head, a rod movable through said head and adapted to rotate independently. thereof, a cap sleeve slidably mounted on said rod and rotating therewith, said cap sleeve being adapted to screw upon said head, and clampingmeans operated by the screwing of said cap sleeve on said head for clamping said rod against endwise movement with relation to said head. I

4. A handle comprising a. head, a rod movablethrough said head and adapted to rotate independently thereof, acap sleeve slidably mounted on said rod and rotating therewith, said cap sleeve being adapted to screw upon said head, and wedge blocks between said head and said rod and actuated by the screwing of said-cap sleeve, upon said head for clamping said rod against endwise movement with relation to said head. I

5. An adjustable handle comprising a head having a laterally-projecting externally screw-threaded sleeve provided with a conical inner surface. a rod fitted to move longitudinally through and to rotate in said head, wedge blocks between said conical surface and said rod, and a cap sleeve slidably mounted on said rod and rotating therewith, said cap sleeve beingadapted to screw upon said screw-threaded sleeve to actuate said wedge blocks. 1 r

6. A handle comprising a head, a rod'movable longitudinally through said head and adapted to rotate independently thereof,

clamping meansfor clamping said rod against longitudinal movement through said head, and means movable longitudinally on said rod and rotating therewith for actuating said clamping means.

7. A handle comprising a head, a rod mov able longitudinally through sald head and adapted to rotate independently thereof,-

clamping means for clamping said rod against longitudinal movement through said head, and a member cooperating with said head and ag-tuated by the rotation of said rod for operating saidclamping means.

8. A handle comprising ahead, a rod movable longitudinally through said head and adapted to rotate independently thereof, clamping means for ilamping said rod against longitudinal movement through said head, and a rotatable member cooperating with said head and actuated by the rotation of said. rod for operating said clamping means.

WILLIAM A. FIELD.- 

